572
FNCA52 TJSJ 140730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST MON SEP 14 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-142000-
SOUTHEAST COASTAL PLAINS-
330 AM AST MON SEP 14 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 0 30
TEMP (24H TREND) 91 (0) 75 (-2) 91
RH % (24H TREND) 57 (+5) 89 (+4) 50
WIND 20FT/EARLY(MPH) E 14 E 13 E 18
WIND 20FT/LATE(MPH) E 17 NE 10 E 19
MIXING HGT(FT-AGL/MSL)5490 4890
TRANSPORT WND (MPH) E 15 E 15
VENT RATE (KT-FT) 71370 63570
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-142000-
SOUTHERN HILLS-
330 AM AST MON SEP 14 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 40 0 50
TEMP (24H TREND) 89 (+2) 71 (-3) 89
RH % (24H TREND) 61 (-2) 97 (+6) 60
WIND 20FT/EARLY(MPH) E 11 E 10 E 13
WIND 20FT/LATE(MPH) E 12 NE 10 E 13
MIXING HGT(FT-AGL/MSL)5860 5160
TRANSPORT WND (MPH) E 14 E 14
VENT RATE (KT-FT) 70320 61920
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-142000-
NORTH COASTAL PLAINS-
330 AM AST MON SEP 14 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 50
TEMP (24H TREND) 90 (0) 75 (-2) 91
RH % (24H TREND) 63 (-2) 97 (+4) 62
WIND 20FT/EARLY(MPH) E 13 E 14 E 14
WIND 20FT/LATE(MPH) E 18 E 10 E 17
MIXING HGT(FT-AGL/MSL)5310 4650
TRANSPORT WND (MPH) E 15 E 15
VENT RATE (KT-FT) 69030 60450
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-142000-
NORTHERN HILLS-
330 AM AST MON SEP 14 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY CLEAR PCLDY
PRECIP TYPE TSTMS NONE TSTMS
CHANCE PRECIP (%) 50 0 60
TEMP (24H TREND) 88 (0) 72 (-2) 90
RH % (24H TREND) 64 (-1) 98 (+2) 62
WIND 20FT/EARLY(MPH) E 11 E 11 E 13
WIND 20FT/LATE(MPH) E 14 E 8 E 14
MIXING HGT(FT-AGL/MSL)5590 4470
TRANSPORT WND (MPH) E 12 E 12
VENT RATE (KT-FT) 55900 44700
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-142000-
WEST COAST-
330 AM AST MON SEP 14 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY CLEAR PCLDY
PRECIP TYPE TSTMS NONE TSTMS
CHANCE PRECIP (%) 60 0 70
TEMP (24H TREND) 91 (0) 74 (-1) 94
RH % (24H TREND) 64 (+2) 97 (+2) 58
WIND 20FT/EARLY(MPH) E 11 E 9 E 11
WIND 20FT/LATE(MPH) E 12 E 9 E 12
MIXING HGT(FT-AGL/MSL)4870 3630
TRANSPORT WND (MPH) E 9 E 7
VENT RATE (KT-FT) 38960 21780
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-142000-
EASTERN INTERIOR-
330 AM AST MON SEP 14 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 50
TEMP (24H TREND) 89 (+1) 73 (-3) 90
RH % (24H TREND) 63 (0) 98 (+5) 62
WIND 20FT/EARLY(MPH) E 11 E 11 E 12
WIND 20FT/LATE(MPH) E 12 E 12 E 12
MIXING HGT(FT-AGL/MSL)6550 5970
TRANSPORT WND (MPH) E 14 E 14
VENT RATE (KT-FT) 78600 71640
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-142000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST MON SEP 14 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 50
TEMP (24H TREND) 85 (+2) 71 (-3) 85
RH % (24H TREND) 68 (-3) 100 (+5) 66
WIND 20FT/EARLY(MPH) E 9 E 9 E 11
WIND 20FT/LATE(MPH) E 10 E 9 E 10
MIXING HGT(FT-AGL/MSL)4330 4500
TRANSPORT WND (MPH) E 15 E 15
VENT RATE (KT-FT) 56290 58500
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-142000-
CENTRAL MOUNTAIN RANGE-
330 AM AST MON SEP 14 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY CLEAR PCLDY
PRECIP TYPE TSTMS NONE TSTMS
CHANCE PRECIP (%) 70 0 70
TEMP (24H TREND) 87 (+3) 69 (-2) 87
RH % (24H TREND) 67 (-2) 98 (+2) 64
WIND 20FT/EARLY(MPH) E 9 E 6 E 9
WIND 20FT/LATE(MPH) E 9 E 6 E 10
MIXING HGT(FT-AGL/MSL)6120 5180
TRANSPORT WND (MPH) E 8 E 8
VENT RATE (KT-FT) 42840 36260
DISPERSION 5 5
DSI 6 2 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-142000-
CAYEY MOUNTAIN RANGE-
330 AM AST MON SEP 14 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 40
TEMP (24H TREND) 85 (+1) 71 (-2) 85
RH % (24H TREND) 67 (0) 99 (+2) 66
WIND 20FT/EARLY(MPH) E 9 E 9 E 11
WIND 20FT/LATE(MPH) E 10 E 9 E 11
MIXING HGT(FT-AGL/MSL)5600 5190
TRANSPORT WND (MPH) E 15 E 16
VENT RATE (KT-FT) 72800 72660
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-142000-
VIEQUES-
330 AM AST MON SEP 14 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 40
TEMP (24H TREND) 89 (0) 78 (-2) 90
RH % (24H TREND) 58 (-4) 85 (+2) 58
WIND 20FT/EARLY(MPH) E 14 E 16 E 16
WIND 20FT/LATE(MPH) E 13 E 16 E 14
MIXING HGT(FT-AGL/MSL)3540 3440
TRANSPORT WND (MPH) E 18 E 18
VENT RATE (KT-FT) 56640 55040
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-142000-
CULEBRA-
330 AM AST MON SEP 14 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 40
TEMP (24H TREND) 90 (+1) 79 (-2) 91
RH % (24H TREND) 62 (-5) 90 (+5) 59
WIND 20FT/EARLY(MPH) E 14 E 16 E 14
WIND 20FT/LATE(MPH) E 13 E 16 E 14
MIXING HGT(FT-AGL/MSL)3540 3310
TRANSPORT WND (MPH) E 18 E 18
VENT RATE (KT-FT) 56640 52960
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-142000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST MON SEP 14 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 30 0 30
TEMP (24H TREND) 91 (0) 75 (-2) 93
RH % (24H TREND) 56 (+3) 86 (+2) 48
WIND 20FT/EARLY(MPH) E 16 E 12 E 14
WIND 20FT/LATE(MPH) E 17 E 12 E 18
MIXING HGT(FT-AGL/MSL)4990 4190
TRANSPORT WND (MPH) E 17 E 13
VENT RATE (KT-FT) 74850 46090
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-142000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST MON SEP 14 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 20 30
TEMP (24H TREND) 88 (+1) 78 (-3) 89
RH % (24H TREND) 62 (-5) 90 (+4) 61
WIND 20FT/EARLY(MPH) E 14 E 16 E 16
WIND 20FT/LATE(MPH) E 13 E 16 E 16
MIXING HGT(FT-AGL/MSL)3430 3370
TRANSPORT WND (MPH) E 17 E 17
VENT RATE (KT-FT) 51450 50550
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-142000-
ST CROIX-
330 AM AST MON SEP 14 2026
TODAY TONIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 20
TEMP (24H TREND) 89 (+1) 78 (-2) 90
RH % (24H TREND) 63 (-4) 90 (+3) 62
WIND 20FT/EARLY(MPH) E 13 E 14 E 16
WIND 20FT/LATE(MPH) E 13 E 14 E 16
MIXING HGT(FT-AGL/MSL)4780 4780
TRANSPORT WND (MPH) E 18 E 17
VENT RATE (KT-FT) 76480 71700
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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